Close the shut off valve at the cold water inlet line.
Replacing anode rod in gas hot water heater.
This anode is installed inside the pipe and can be difficult to reach often involving the removal and breakage of the pipe and the unscrewing of the hot water pipe nipple section.
If necessary unscrew and lift off the cover from the top of the heater.
1 turn off water and fuel supply gas or electricity to water heater.
Most anodes are at the top of the heater attached by a hex head screw.
In this episode of repair and replace vance shows how to remove the anode rod to check the corrosi.
How do i replace an anode rod.
First turn the power off to the water heater at the circuit breaker.
Eastman water heater anode rod water heater anode rod.
Water heaters use an anode rod to attract and remove sediments from the water being heated.
The product preservers anti scale system protects your tankless water heater from damage due to scale formation.
What does an anode rod do.
4 use a ratchet wrench and 1 1 16 inch deep socket to unscrew the anode rod from the heater.
A few newer plastic lined tanks have no anode rods to replace before you get started close the shutoff valve turn on the hot water at a faucet to relieve pressure and turn off the electricity or gas to the heater.
3 locate the anode rod on the water heater.
An anode rod will corrode and deteriorate over time until it s no longer capable of functioning and has to be replaced.
Anode rods help prevent corrosion of the hot water heater s glass lined tank.
The rod may be under the water heater s sheet metal top or connected to the hot water outlet nipple.
This is a common problem with older water heaters and in certain parts of the country.
For gas heaters you should turn off the gas supply.
5 if the anode rod won t.
The rod is made from either aluminum or magnesium and it reacts with minerals in water.
As water flows through the filter hard water minerals form inactive scale crystals which flow through the water heater without sticking to the heat exchanger.
A replacement anode rod a socket wrench a 1 and 1 16 inch socket a 24 inch cheater bar or pipe a flat blade screwdriver teflon tape a garden hose and a hacksaw.
Some water heaters have an anode attached to the hot water outlet.
This system does not add chemicals to the water or require electricity.